Recent Solutions
Prev Hole
Play Hole
Next Hole
Golfers
Solutions
All Holes
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
CSS Colors
Cubes
Day of Week
DFA Simulator
Diamonds
Divisors
Emirp Numbers
Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
Forsyth–Edwards Notation
Fractions
Game of Life
Gijswijt’s Sequence
Happy Numbers
Happy Numbers (Long)
Hexdump
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
Kaprekar Numbers
Kolakoski Constant
Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
Maze
Medal Tally
Morse Decoder
Morse Encoder
Musical Chords
N Queens
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
Polyominoes
Prime Numbers
Prime Numbers (Long)
Proximity Grid
QR Decoder
Quine
Recamán
Repeating Decimals
Reverse Polish Notation
Reversi
Rijndael S-box
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Time Distance
Tongue-twisters
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
All Languages
><>
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
F#
Factor
Forth
Fortran
Go
GolfScript
Haskell
Hexagony
J
Janet
Java
JavaScript
jq
Julia
K
Kotlin
Lua
Nim
OCaml
Pascal
Perl
PHP
PowerShell
Prolog
Python
R
Raku
Rockstar
Ruby
Rust
Scheme
sed
SQL
Swift
Tcl
TeX
V
VimL
Wren
Zig
Bytes
Chars
Scoring
Bytes
Chars
Language
All
><>
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
F#
Factor
Forth
Fortran
Go
GolfScript
Haskell
Hexagony
J
Janet
Java
JavaScript
jq
Julia
K
Kotlin
Lua
Nim
OCaml
Pascal
Perl
PHP
PowerShell
Prolog
Python
R
Raku
Rockstar
Ruby
Rust
Scheme
sed
SQL
Swift
Tcl
TeX
V
VimL
Wren
Zig
Hole
All
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
CSS Colors
Cubes
Day of Week
DFA Simulator
Diamonds
Divisors
Emirp Numbers
Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
Forsyth–Edwards Notation
Fractions
Game of Life
Gijswijt’s Sequence
Happy Numbers
Happy Numbers (Long)
Hexdump
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
Kaprekar Numbers
Kolakoski Constant
Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
Maze
Medal Tally
Morse Decoder
Morse Encoder
Musical Chords
N Queens
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
Polyominoes
Prime Numbers
Prime Numbers (Long)
Proximity Grid
QR Decoder
Quine
Recamán
Repeating Decimals
Reverse Polish Notation
Reversi
Rijndael S-box
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Time Distance
Tongue-twisters
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Hole
Golfer
Chars
Submitted
Happy Numbers
Mabeloid
155
20 Sep 2024
Happy Numbers
HumanoidCPU
125
24 Aug 2024
Happy Numbers
gpikmddk
130
12 Aug 2024
Happy Numbers
Steffan153
🥇
57
9 Aug 2024
Happy Numbers
rifatx
155
16 Jul 2024
Happy Numbers
bac0id
152
30 Jun 2024
Happy Numbers
billings7
94
21 May 2024
Happy Numbers
Yax42
117
16 May 2024
Happy Numbers
KatieLG
125
5 May 2024
Happy Numbers
dokutan
99
28 Apr 2024
Happy Numbers
namelessiw
🥇
57
12 Dec 2023
Happy Numbers
janbehrens
73
26 Nov 2023
Happy Numbers
josephdwalker
131
3 Oct 2023
Happy Numbers
GarethSpring
125
3 Oct 2023
Happy Numbers
wgloverDH
125
3 Oct 2023
Happy Numbers
msbranicky
140
28 Aug 2023
Happy Numbers
Matgc04
103
22 Aug 2023
Happy Numbers
Adix-null
127
30 Jul 2023
Happy Numbers
MeWhenI
🥇
57
26 Jul 2023
Happy Numbers
stefangimmillaro
🥇
57
15 Jul 2023
Happy Numbers
AdrienHache
🥇
57
30 May 2023
Happy Numbers
arctouch-cristiannevianna
86
25 May 2023
Happy Numbers
Shanethegamer
73
12 May 2023
Happy Numbers
Yewzir
80
8 May 2023
Happy Numbers
btnlq
🥇
57
10 Mar 2023
Happy Numbers
zt14427
159
4 Mar 2023
Happy Numbers
retrohun
155
27 Dec 2022
Happy Numbers
ChrisTheisen
159
14 Dec 2022
Happy Numbers
hemphen
69
28 Aug 2022
Happy Numbers
Re-Adventures
110
14 Aug 2022
Happy Numbers
bschorno
153
4 Aug 2022
Happy Numbers
hamhub7
133
3 Aug 2022
Happy Numbers
p-vf
135
13 Jul 2022
Happy Numbers
KatieLG-Transpiler
159
23 Jun 2022
Happy Numbers
adlerzei
197
16 Jun 2022
Happy Numbers
roavin
83
16 May 2022
Happy Numbers
annaproxy
80
5 May 2022
Happy Numbers
ericlangedijk
104
17 Mar 2022
Happy Numbers
sean-niemann
77
29 Dec 2021
Happy Numbers
Irratix
104
13 Dec 2021
Happy Numbers
tomtheisen
🥇
57
21 Nov 2021
Happy Numbers
tomh1012
122
21 Nov 2021
Happy Numbers
tdkkdt
199
21 Nov 2021
Happy Numbers
baltermia
128
21 Nov 2021
Happy Numbers
ScottHamper
🥇
57
21 Nov 2021
Happy Numbers
prplz
🥇
57
21 Nov 2021
Happy Numbers
primo-ppcg
60
21 Nov 2021
Happy Numbers
petroselo
125
21 Nov 2021
Happy Numbers
muztanger
155
21 Nov 2021
Happy Numbers
lleszczynski-PL
847
21 Nov 2021
Happy Numbers
nwellnhof
🥇
57
21 Nov 2021
Happy Numbers
mokymok
155
21 Nov 2021
Happy Numbers
Meowsan91
123
21 Nov 2021
Happy Numbers
Lydxn
🥇
57
21 Nov 2021
Happy Numbers
jiaminglimjm
184
21 Nov 2021
Happy Numbers
JayXon
🥇
57
21 Nov 2021
Happy Numbers
iznax
111
21 Nov 2021
Happy Numbers
Hankinabag
116
21 Nov 2021
Happy Numbers
daniel-skalik
128
21 Nov 2021
Happy Numbers
aliakseikalosha
184
21 Nov 2021
Happy Numbers
CheeryProgrammer
71
21 Nov 2021
Happy Numbers
c0d3-4-F00d
130
21 Nov 2021
Happy Numbers
AdrialaD
119
21 Nov 2021
Happy Numbers
0sektor0
144
21 Nov 2021